Anyone very good in math and wanna help me?

The number of electoral votes each state is assigned is determined by the size of its population every ten years. the chart shows the number of electoral votes california was assigned each decade of the past century. what is the 3rd quartile of the data?

Reagan lives five miles farther from school than vanessa lives. write an expression to describe how far reagan lives from school

Using only the digits 5, 6, 7, 8, how many different three digit numbers can be formed if no digit is repeated in a number?